MOV	R0, #VICADDRESS		;get VICADDRESS
		LDR	R0, [R0]		; /
		CMP	R0, #0x00		;/
		MOVNE	LR, PC			;Call to VICADDRESS
		BXNE	R0			;/
		MOV	R0, #VICADDRESS		;VICADDRESS = 0
		MOV	R1, #0x00		; /
		STR	R1, [R0]		;/
		
		LDR	R0, =IRQ_Handler	; before selecting the next task to execute.
		MOV	lr, pc			;
		BX 	R0			;